47709028 has 12 divisors (see below), whose sum is σ = 83764912. Its totient is φ = 23776200.

The previous prime is 47709007. The next prime is 47709029. The reversal of 47709028 is 82090774.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (47709029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18198 + ... + 20653.

Almost surely, 2^47709028 is an apocalyptic number.

It is an amenable number.

47709028 is a deficient number, since it is larger than the sum of its proper divisors (36055884).

47709028 is a wasteful number, since it uses less digits than its factorization.

47709028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39162 (or 39160 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 47709028 is about 6907.1722144449. The cubic root of 47709028 is about 362.6882807878.

The spelling of 47709028 in words is "forty-seven million, seven hundred nine thousand, twenty-eight".